the classes are "out" but due to level constrictions there are some that are currently not playable
due to the lv40 cap in CB the restricted classes are templar, blade dancer, shaman, and warlock
In order to unlock a certain class there are certain character and level restrictions that are required.

There has been no confirmed time period for when Zumis will be released but it has been said to expect it soon after OB opens.